code: def test_dijkstra_limit():
      limits = [0, 2, np.inf]
      results = [
          undirected_SP_limit_0,
          undirected_SP_limit_2,
          undirected_SP,
      ]
  
      def check(limit, result):
          SP = dijkstra(undirected_G, directed=False, limit=limit)
          assert_array_almost_equal(SP, result)
  
      for limit, result in zip(limits, results):
          check(limit, result)
  
imports: from io import StringIO
  import warnings
  import numpy
  from numpy.testing import assert_array_almost_equal, assert_array_equal, assert_allclose
  from pytest import raises
  from scipy.sparse.csgraph import shortest_path, dijkstra, johnson, bellman_ford, construct_dist_matrix, NegativeCycleError
  import scipy.sparse
  from scipy.io import mmread
  import pytest
label_desc: Use image node_id 1 for calling a global function with example usage: test_dijkstra_limit() without return types